Pallet Flow Track is a high density pallet storage system in which pallets of like product are stored from two up to 12 pallets deep on a horizontal plane. The pallets are fed in and retrieved from the one aisle, with each pallets load being pushed into the structure by succeeding pallets so the first pallet in, becomes the last pallet out.

Push Back Auto Retrieve racking is a high density pallet storage system in which pallets of like product are stored two, three or four deep on a horizontal plane. The pallets are fed in and retrieved from the one aisle, with each pallets load being pushed into the structure by succeeding pallets so the first pallet in, becomes the last pallet out. When retrieving the pallets the remaining ones are automatically moved forward.